hadoop1.1.2配置及启动

1.安装jdk,配置环境变量node

下载地址:http://yunpan.cn/csUMbjpYd6LIU    提取码 8e1dssh


修改/etc/profileide

export JAVA_HOME=/opt/jdk1.6.0_12oop

export PATH=$PATH:$JAVA_HOME/binthis


重启spa


2.下载hadoop1.1.2orm

下载地址:http://yunpan.cn/csUMinfxTYFZr 提取码 7bf8xml


修改配置文件hadoop

hadoop-env.shci

export JAVA_HOME=/opt/jdk1.6.0_12


core-site.xml

<?xml version="1.0"?>

<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

 <property>

  <name>fs.default.name</name>

  <value>hdfs://localhost:9000</value>

 </property>

 <property>

  <name>hadoop.tmp.dir</name>

  <value>/opt/hadoop-1.1.2/tmp</value>

 </property>

</configuration>


hdfs-site.xml

<?xml version="1.0"?>

<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

<!-- 设置备份的份数 --> 

 <property>

  <name>dfs.replication</name>

  <value>1</value>

 </property>

</configuration>


mapred-site.xml

<?xml version="1.0"?>

<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

 <property>

  <name>mapred.job.tracker</name>

  <value>localhost:9001</value>

 </property>

</configuration>


免密码登录

$ ssh-keygen -t rsa

$ cd $HOME/.ssh

$ cp id_rsa.pub authorized_keys

$ ssh localhost


格式化HDFS:hadoop namenode -format

启动hadoop群集:start-all.sh


卸载hadoop,因为没配环境变量,直接删除文件就行

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